Gpk
[医][=guinea pig kidney antigen]豚鼠肾抗原
🗣️ 情景例句
The reviews were all right; it was the best performance I have ever seen.
那些评论写得很对，是我所见过表现最好的一次表演。
To cross the street
横穿马路
What on earth has happened to trouble you so?
到底发生什么事让您如此发愁？